Home / 3,655.75-5,483.90-1,190.38

Finding the Fourth Proportional to 3,655.75, 5,483.90 and 1,190.38

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Solution

The fourth proportional to 3,655.75, 5,483.90 and 1,190.38 is: 1,785.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,655.75 : 5,483.90 = 1,190.38 : x
  2. Step 2: Convert to fraction form
    3,655.75/5,483.90 = 1,190.38/x
  3. Step 3: Cross multiply
    3,655.75x = 5,483.90 × 1,190.38
  4. Step 4: Simplify right side
    3,655.75x = 6,527,924.88
  5. Step 5: Solve for x
    x = 6,527,924.88/3,655.75
  6. Step 6: Final answer
    x = 1,785.66

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.